Scripting Engine problem Bug #42937https://bugs.php.net/bug.php?id=42937
[Closed] __call() method not invoked when methods are called on parent from child classThu, 11 Oct 2007 23:08:54 +0000Mon, 12 Nov 2007 09:12:31 +0000dmitry@... [2007-10-11 23:08:54]Scripting Engine problem Bug
Reported by jmaxwilson@...
Thu, 11 Oct 2007 23:08:54 +0000
PHP: 5.2.4, OS: Windows XP
Description:
------------
If __call() is used to implement a method in a parent class, and the method is overridden in an inherited child class using a real method declaration that calls parent::methodName(), __call() is never invoked and PHP reports a fatal error saying that the method is undefined.
You can work around the bug by replacing parent::methodName() with parent::__call('methodName',null), but it means that you have to know which of the parent's methods are implemented using __call() in order to override them in a child class.
The child class should be agnostic to whether the parent's methods are real or magic.
This bug was reported in PHP5.1 RC1 (http://bugs.php.net/bug.php?id=34739) but was improperly marked as bogus with the explanation that "__call() is not used when calling static methods." The use of the paamayim-nekudotayim (::) with the parent keyword is not to resolve static scope but to resolve inherited scope for an overridden method, therefore the issue should be reconsidered.
Reproduce code:
---------------
<?php
class A {
function __call($strMethod, $arrArgs) {
return "PHP " .phpversion();
}
}
class B extends A {
function getVersion() {
return parent::getVersion() . " Rocks!";
}
}
$A = new A();
echo $A->getVersion() . "<br/>";
$B = new B();
echo $B->getVersion() . "<br/>";
?>
Expected result:
----------------
PHP 5.2.4
PHP 5.2.4 Rocks!
Actual result:
--------------
PHP 5.2.4
Fatal error: Call to undefined method A::getversion() in C:\www\test.php on line 10
]]>Thu, 11 Oct 2007 23:08:54 +0000https://bugs.php.net/bug.php?id=42937